Описание
The Microchip Technology Inc. MCP3021 is a successive approximation A/D converter (ADC) with 10-bit resolution. Available in the SOT-23 package, this device provides one single-ended input with very low power consumption. Based on an advanced CMOS technology, the MCP3021 provides a low maximum conversion current and standby current of 250 µA and 1 µA, respectively. Low current consumption, combined with the small SOT-23 package, make this device ideal for battery-powered and remote data acquisition applications. Communication to the MCP3021 is performed using a 2-wire I2C compatible interface. Standard (100 kHz) and Fast (400 kHz) I2C modes are available with the device. An on-chip conversion clock enables independent timing for the I2C and conversion clocks. The device is also addressable, allowing up to eight devices on a single 2-wire bus. The MCP3021 runs on a single supply voltage that operates over a broad range of 2.7V to 5.5V. This device also provides excellent linearity of ±1 LSB differential non-linearity (DNL) and ±1 LSB integral nonlinearity (INL), maximum.
- 10-bit resolution
- ±1 LSB DNL, ±1 LSB INL max.
- 250 µA max conversion current
- 5 nA typical standby current, 1 µA max.
- I2C™ compatible serial interface – 100 kHz I2C Standard mode – 400 kHz I2C Fast mode
- Up to 8 devices on single 2-wire bus
- 22.3 ksps in I2C Fast mode
- Single-ended analog input channel
- On-chip sample and hold
- On-chip conversion clock
- Single supply specified operation: 2.7V to 5.5V
- Temperature range: – Extended: -40°C to +125°C
- Small SOT-23 package
